Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4615999 | Method for preparing hydrodesulfurization catalyst | Toshio Hashimoto, Masaru Tatsushima | 1986-10-07 |
| 4613585 | Process of preparing alumina for use in catalyst carrier | Toshio Hashimoto, Masaru Tatsushima | 1986-09-23 |
| 4399119 | Manufacture of spherical alumina from gibbsite | Toshio Hashimoto, Masaru Tatsushima | 1983-08-16 |
| 4309312 | Manufacture of spherical alumina from gibbsite | Toshio Hashimoto, Masaru Tatsushima | 1982-01-05 |
| 4301033 | High apparent bulk density gamma alumina carrier and method of manufacture of same | Toshio Hashimoto, Fumio Akimoto | 1981-11-17 |